Originally Posted by Mike@N54Tuning.com
The N55 135i w/ DCT is pretty competitive with an N54 steptronic. BMS has run 12.4s on it with just Stage1 on one. The N55 steptronic seems to run slower for some reason. Overall I think a tuned N55 DCT has a chance against a tuned N54 steptronic but I wouldn't bet on it.
This is an unfair comparison Mike. I want to compare engines solely... You are comparing a lightning quick DCT tranny to a pretty quick Auto. We need to get stick to stick or auto vs auto. DCT has to be completely taken out of the equation as there is no N54 DCT 335 in the USA and there is no N55 135 Step in the USA.